High Frequency GPR data for Thazhamkuda fan, SE India

Eight Ground Penetrating Radar profiles were collected across the Cyclone Thane (2011) washover fan preserved at Thazhamkuda, near Cuddalore on the southeastern coast of India. The GPR data were collected with the 1000 MHz shielded Sensor and Software Pulse Echo antennas. The antennas were uniformly 15 cm apart, the electromagnetic pulse time window was set to 25 ns and the data stacked 4 times. Electromagnetic pulses were emitted and recorded at 1 cm intervals.
Topography was collected using a Trimble differential Global Positioning System (dGPS) that was ground-truthed from a surveyed height at a local train station. Due to the relatively flat terrain across the fan, dGPS heights were collected at approximately 10 m increments or where significant breaks in slope occurred. The dGPS measurements have a horizontal accuracy of approximately 1.5 cm and a vertical accuracy of 4 cm.
Only the raw GPR and topography data are contained here and processed data (including processing steps) are presented in a forthcoming publication.

在印度东南海岸库达洛尔（Cuddalore）附近的塔扎姆库达（Thazhamkuda）地区，针对2011年塔恩气旋（Cyclone Thane）形成并保存至今的越滩扇（washover fan），采集了8条探地雷达（Ground Penetrating Radar, GPR）剖面数据。GPR数据采用Sensor and Software公司的1000 MHz屏蔽式脉冲回波天线采集，天线间距均为15厘米，电磁脉冲时间窗设置为25纳秒，数据叠加4次，电磁脉冲以1厘米间隔发射并记录。

地形数据通过Trimble差分全球定位系统（differential Global Positioning System, dGPS）采集，该系统已利用当地火车站的测量高程完成地面真值校准（ground-truthed）。由于越滩扇区域地形相对平坦，dGPS高程数据以约10米间隔采集，或在坡度发生显著变化处采集；其水平精度约为1.5厘米，垂直精度约为4厘米。

本数据集仅包含原始GPR数据与地形数据，处理后的数据（含处理步骤）将在即将发表的论文中呈现。